Locking a Computer Screen for Security

Did you know that before you walk away from your computer, you can easily lock your screen for security with only a few clicks? Each operating system handles this differently.

Table of Contents


To lock a Windows computer, one of these key commands can be used:

  • Hold the Windows key and press L on the keyboard
  • Press Ctrl-Alt-Del on the keyboard and then select the Lock option
Windows ctrl-alt-del menu
Windows Ctrl-Alt-Del menu


To lock a macOS computer, one of these methods can be used:

  • Go to the Apple menu and choose Lock Screen
  • The keyboard shortcut is hold the control and command keys, then press Q
Apple menu with lock screen highlighted
Apple menu with Lock Screen